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[Bug libstdc++/13351] [3.3 Regression] Generated code is noticeable slower (compared to 3.2)
- From: "giovannibajo at libero dot it" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Dec 2003 12:10:42 -0000
- Subject: [Bug libstdc++/13351] [3.3 Regression] Generated code is noticeable slower (compared to 3.2)
- References: <20031208072839.13351.cline@parashift.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From giovannibajo at libero dot it 2003-12-08 12:10 -------
Under cygwin, I get a slowdown, but it's nowhere as significant as 10x:
$ g++-3.2.2 -O pr13351.cc && time ./a.exe
Testing: 9000000 in 1.032 sec = 0.114667 ns/per
real 0m1.120s
user 0m0.010s
sys 0m0.040s
$ g++-3.3.1 -O pr13351.cc && time ./a.exe
Testing: 2000000 in 1.509 sec = 0.7545 ns/per
real 0m1.776s
user 0m1.502s
sys 0m0.050s
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2003-12-08 12:10:42
date| |
Summary|[3.3 Regression] 10x slower |[3.3 Regression] Generated
|generated code (GCC 3.3 |code is noticeable slower
|compared with GCC 3.2) |(compared to 3.2)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13351